Hi mike7,
No not at all. Their polyfoam is typically 1.2 or 1.5 lbs and rarely higher in the comfort layers. They are clearly lower quality than most other smaller manufacturers use in each price point but the biggest problem is that they don’t disclose the specifics of each mattress so you are forced to make a blind purchase as to the specifics of a mattress you are considering. On occasion you will be able to find out the density of some of the memory foam they use or in some cases be able to identify any latex layers and in these cases you will find that they compare poorly in terms of their relative value to other similar mattresses made by smaller manufacturers. If you tear one of their mattress apart and weigh out the layers (as many people I know have done) you can verify it for yourself. In some cases you can also connect some of the dots with information that is available on the internet if you are willing to spend the hours it will take to do so. The “preponderance of the evidence” is overwhelming if you spend the hours of research that I have or develop the sources of information that can bypass the dead ends that your research will often lead to.
If you’re interested you can see a few of their typical foam densities in post #4 here.
Their memory foam (even in their higher end mattresses) often includes 3.5 lb memory foam (low quality) and 5.5 lb memory foam (good quality). I personally wouldn’t consider a mattress in their price ranges that used 2" or more of memory foam that was less than 4 lb density.
I wouldn’t consider a mattress in their price ranges that used foams that were in this quality range if durability was a priority.
Regardless of any of this though if you are comfortable buying a mattress that is a blind purchase and where the odds are very high that the mattress you are purchasing uses lower quality materials and if you choose to ignore all the technical or experiential information that is available to you on this site and many others and make the purchase anyway then of course that’s your personal choice but a blind purchase is never a good idea IMO especially when the odds are stacked so heavily against you.
Phoenix